20525037 has 8 divisors (see below), whose sum is σ = 29471904. Its totient is φ = 12630768.

The previous prime is 20525017. The next prime is 20525053. The reversal of 20525037 is 73052502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20525037 - 2¹⁰ = 20524013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20524998 and 20525016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20525017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263103 + ... + 263180.

It is an arithmetic number, because the mean of its divisors is an integer number (3683988).

Almost surely, 2^20525037 is an apocalyptic number.

It is an amenable number.

20525037 is a deficient number, since it is larger than the sum of its proper divisors (8946867).

20525037 is a wasteful number, since it uses less digits than its factorization.

20525037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526299.

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 20525037 is about 4530.4565995052. The cubic root of 20525037 is about 273.7965572073.

Adding to 20525037 its reverse (73052502), we get a palindrome (93577539).

The spelling of 20525037 in words is "twenty million, five hundred twenty-five thousand, thirty-seven".